You can perform a full backup operation of a ApsaraDB RDS for PostgreSQL database group.
From the navigation pane, go to Protect > Databases.
The Instances page appears.
Click the instance.
The instance page appears.
In the Database groups table, click the database group that you want to back up.
The database group page appears.
The Select backup level dialog box appears.
Under Backup level, select Full.
By default, backup operations using DumpBased backup set do not include information about roles. This is because
pg_dump utility that is used to perform DumpBased backup operation does not back up roles information. To save this information using the
pg_dumpall utility, enable backups for global objects in the PostgreSQL database.